Process for assembling a cone speaker
US4566178A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1984 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Dec 28, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for assembling a cone speaker by the consecutive steps of (a) attaching a forward ring-shaped magnet plate to the small end of a truncated conical basket frame; (b) attaching a ring-shaped magnet concentrically to the forward magnet plate; (c) positioning voice coil by a shim within the central opening of the forward magnet plate; (d) affixing a flexible spider to the voice coil and to the basket; (e) affixing a solid speaker cone and its flexible skiver to the voice coil and to the basket; and affixing a cylindrical pole piece and rear plate assembly to the rear portion of the magnet with the pole piece extending into the inside of the voice coil and spaced apart therefrom by about 0.015 inch radially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.